3M Scotch-Weld DP820 Acrylic Adhesive Overview

3M DP820 Acrylic Adhesive is a toughened, two-part adhesive featuring a 1:1 mix ratio for convenient application. With excellent shear and peel strength, DP820 is ideal for bonding metals, ceramics, wood, and most plastics. It requires minimal surface preparation and offers a 15 to 20-minute work life for easy adjustments during assembly. Once applied, the adhesive forms durable, high-strength bonds that can replace mechanical fasteners such as rivets and screws. It also performs well in high-humidity environments, maintaining bond integrity under various conditions.

DP820 Features and Benefits

• 15 to 20-Minute Work Life: Allows ample time for repositioning and adjustments before curing.
  
• Excellent Shear and Peel Strength: Delivers durable bonds capable of withstanding demanding conditions.
  
• Toughened Adhesive: Formulated for increased impact resistance and durability.
  
• 1:1 Mix Ratio: Ensures easy mixing and application for consistent results.
  
• Minimal Surface Preparation: Bonds effectively to a variety of substrates with little to no prep.

Specifications

• Series: 3M Scotch-Weld DP820
  
• Type: Acrylic Structural Adhesive
  
• Application: Bonding
  
• Substrates: Many Metals, Ceramics, Wood, Most Plastics
  
• Color: Off-White
  
• Available Sizes: 50 mL, 200 mL, 400 mL Cartridges
  
• Mix Ratio by Volume (B:A): 1:1
  
• Shore D Hardness: 75
  
• Worklife: 15 to 20 Minutes
  
• Open Time: 15 Minutes
  
• Set Time: 30 to 40 Minutes
  
• Time to Full Cure: 24 to 48 Hours
  
• Storage Temperature: Cool Dry Area Less Than 80?F (27?C).
  
• Refrigerated Storage: 40?F to 55?F (4?C to 13?C) Extends Shelf Life
  

Note: All results are based on testing at 72?F (22?C).

Applications

3M DP820 methacrylate adhesive is ideal for metalworking in industries such as HVAC, appliance manufacturing, and specialty vehicles. It?s also suitable for sign manufacturing, including panel-to-frame bonding and letter attachment. It is frequently used for bonding plastics, composites, and powder coats to metals in applications where a longer open time is necessary.